Ventilator



March 18, 1930. E. A. THOMPSON VENTILATOR Filed March 14, 1927 .lf/T ESS Patented Mal". 18,4 1930 l UNITED STATES EUGENE A. THOMPSON,l OF SYRACUSE, NEW YORK, ASSIGNOR TO'. SITEADFAST MANU- FAOTUEING COMPANY, INO., OF GENEVA, NEW YORK, A CORPORATION OF. NEW

` YORK VENTILATOR Application eleva March 14, 1927. serial No. 175,399.

y AThemain object of my invention is to pro- .6 vide a means whereby the air confined in an enclosed moving `vehicle may be withdrawn from suchvehicle without introducing intov the vehicle outside air through the means of ventilation.

- Another object is to provide a means of ventilation which will function without exposing the interior of the vehicle to the outside elements. A,

Other objects and advantages relate to the details and form-of the device, all as will more fully appear from the following description taken in connection with the accompanying drawings, in which:

, Figure- 1 isaa perspective viewshow1ng the application of my device to the window of a vehicle (in this case an automobile).

Figure 2 is a longitudinal crossesection through the device.

Figure 3 is a section` at line 3 3', Figure 2f Figure 4 is a perspective view partially in section showing the details of the two ends of my device. 4 v l This device can be made of any suitable metal or other material, and may be .given any desired finish or decoration after 1t has been fabricated.` It may-be positioned in the upper part .of a window, as shown 1n Figure 1being locked into placel by the window -gl-a'ss which is raised and seated in ya recess along the `vbottom edge of the device, or itmay be permanently inset-in any desired part of the vehicle body.

The device consists of the main barrel 40 1-'1- which is formed in an approximately half-round shape, the front end v -2-- being somewhat larger than the rear lend '-3-, the barrel tapering from front to rear so that the air passing therethrough will increase in velocity as it approaches the rear endfv The longitudinal edges -`-4, and -5Of the barrel -lare formed into recesses to -7 of the back-plate -8- which is parbacked v enclosed baffles or plates ,-10- 1n angular relation toback-plate -8-.

The upper longitudinal-edge of the back- `plate -8- is formed to slidably fit into the the addition that this lower longitudinal edge of back-plate '-8- is carried over and return bent to form a recess 13- into which the glass of the vehicle window 14- may be received and seated.

After the back-plate -8- is assembled into the barrel -1 it is preferable to lock it in position by spot-welding or other convement means. I

The device is fashioned and assembled so that the bafes l0- extend inwardly totheir direction of angularity from the'backplate -8- towards the smaller orv rear end -3- of the barrel -1. It will be seen that the adjusting plate ,-12-1- being slidably `mounted inv the back-plate -8- permits` a longitudinal adjustment of the device 'PAT-ENT 'OFFICE N and permits'adaptation to diiferent widths of windows and a tight closure of the space in the window occupied bythe device.- j

When the `automobile `or other uvehicle carrying this device moves forward, the air through which the device .is moving will enter the large end of the barrel Qi-,- and be carried backward through the barrel, and will pass out through the small end 3 vof the barrel at a greater or lesser velocity dependent on thel speed of the'car. This air passing through the device cannot enter the interior of the vehicle through the openings -9- because it willvbe deflected by the baffles -10-. It will, however, cause a draft or suction by aspiration which will draw air from the interior'of'the vehicle through the openings -9linto the barrel 2,' v l 1,760,789v

1 and out through the'rear end -3- of the barrel.

The amountofair drawn from the interior of the vehicle will depend upon the quantity and velocity of the outside air being drawn through the devi-ce.`

The device is shown as removably secured in the wall of a vehicle, but it will be apparent that it may be permanently secu-red in the wall of the vehicle as for instance, built in.

Altho -I have shown and describeda specic construction and form of part as illustrative of an embodiment of my invention, I do not desire to restrict myself to the exact form, shape orarrangement of the parts, as various changes may be made Within the scope of the appended claim. f

Iclaim: In a, device 'of the class described, a plate having its central portion formed into an open sided cylinder, a second plate having a plurality of spaced apertures and having an outwardly extending baffle adjacent the ed-ge of each aperture, a recess /formeohon the top longitudinal edge of the first named plate for the reception of one longitudinal edge f of the second named plate, ,a recess formed on the bottom longitudinal edge .ofthe first Y i named plate for the reception of the vother longitudinal edge of the second named plate and a glass receiving recess formed on the second-namedplate adjacent the last named reception.

In witness Whereofl have hereunto set my hand this 8th day of March, 1927.

. EUGENE THOMPSON. 

